In the following exercises, solve. Round answers to the nearest tenth. 205. A computer store owner estimates that by charging x dollars each for a certain computer, he can sell 40 − x computers each week. The quadratic equation R = − x 2 + 40 x is used to find the revenue, R , received when the selling price of a computer is x . Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.
In the following exercises, solve. Round answers to the nearest tenth. 205. A computer store owner estimates that by charging x dollars each for a certain computer, he can sell 40 − x computers each week. The quadratic equation R = − x 2 + 40 x is used to find the revenue, R , received when the selling price of a computer is x . Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.
In the following exercises, solve. Round answers to the nearest tenth.
205. A computer store owner estimates that by charging x dollars each for a certain computer, he can sell
40
−
x
computers each week. The quadratic equation
R
=
−
x
2
+
40
x
is used to find the revenue, R, received when the selling price of a computer is x. Find the selling price that will give him the maximum revenue, and then find the amount of the maximum revenue.
Formula Formula A polynomial with degree 2 is called a quadratic polynomial. A quadratic equation can be simplified to the standard form: ax² + bx + c = 0 Where, a ≠ 0. A, b, c are coefficients. c is also called "constant". 'x' is the unknown quantity
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